Perhaps you should try some spelling variations:
dang mai » dang hai, dang mau, dang bai
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
ky dang » ky nang, ky danh
mai hoi » mai khoi, dai hoi, lai hoi
va cham » va chat, va tham
tu sac » tu sach, tu cac, tu san
vi cua » vai cua, di cua
ve cac » va cac, vien cac
sac ky » cac ky, sai ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang mai hoi. hieu ((ve cac) or (va cham)) xuc ((ban hanh) or (van hanh)) vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang mai hoi. hieu ((ve cac) OR (va cham)) xuc ((ban hanh) OR (van hanh)) vi cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang mai hoi. hieu ((ve cac) or (va cham)) xuc ((ban hanh) or (van hanh)) vi cua vat*.